Watches, Warnings & Advisories



3 products issued by NWS for:

Hazardous Weather Outlook

Hazardous Weather Outlook
National Weather Service Cheyenne WY
448 PM MDT Mon Apr 20 2026

NEZ002-003-019>021-054-055-095-096-WYZ101>119-272300-
Dawes County-Box Butte County-Scotts Bluff County-Banner County-
Morrill County-Kimball County-Cheyenne County-
Northern Sioux County-Southern Sioux County-
Converse County Lower Elevations-Niobrara County-
North Laramie Range-Ferris/Seminoe/Shirley Mountains-
Shirley Basin-Central Laramie Range and Southwest Platte County-
East Platte County-Goshen County-Central Carbon County-
North Snowy Range Foothills-Southwest Carbon County-
Sierra Madre Range-Upper North Platte River Basin-Snowy Range-
Laramie Valley-South Laramie Range-South Laramie Range Foothills-
Central Laramie County-East Laramie County-
448 PM MDT Mon Apr 20 2026

This text Hazardous Weather Outlook product has been
discontinued as of April 13th 2026. Information formerly contained
within this product can now be found online in graphical form at
https://www.weather.gov/erh/ghwo?wfo=cys and via the NWS Cheyenne
Weather Story and/or social media outlets.

This reminder about the sunset of the text Hazardous Weather Outlook
will remain in place until April 30th 2026.

$$




Red Flag Warning

URGENT - FIRE WEATHER MESSAGE
National Weather Service Cheyenne WY
1107 PM MDT Tue Apr 21 2026

...MULTI DAY RED FLAG WARNING IS IN EFFECT UNTIL WEDNESDAY
EVENING...

NEZ434>437-WYZ417-418-430>433-230000-
/O.CON.KCYS.FW.W.0018.000000T0000Z-260423T0200Z/
Pine Ridge/Nebraska National Forest-
Box Butte/South Sioux/Niobrara River-
Lower North Platte River Basin/Scottsbluff National Monument-
Lodgepole Creek/Southern Nebraska Panhandle-
Niobrara/Lower Elevations of Converse/Thunder Basin National
Grassland-
Middle North Platte River Basin/Niobrara and Converse High Plains-
Laramie Foothills and High Plains-Laramie East High Plains-
Bordeaux/Chugwater/Wheatland-Goshen/Middle-
Lower North Platte River Basin-
1107 PM MDT Tue Apr 21 2026

...RED FLAG WARNING REMAINS IN EFFECT UNTIL 8 PM MDT WEDNESDAY
FOR VERY LOW HUMIDITY AND GUSTY WINDS FOR FIRE WEATHER ZONES 417,
418, 430, 431, 432, 433, 434, 435, 436, AND 437...

* AFFECTED AREA...Fire weather zones 417, 418, 430, 431, 432,
  433, 434, 435, 436, and 437.

* WIND... Southwest winds with gusts between 35 and 50 mph on
  Wednesday.

* HUMIDITY...5 to 12 percent.

* IMPACTS...Any fires that develop will likely spread rapidly.
  Outdoor burning is not recommended.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Red Flag Warning means that critical fire weather conditions
are either occurring now, or will shortly. A combination of
strong winds, low relative humidity, and warm temperatures can
contribute to extreme fire behavior.

&&

$$




High Wind Watch

URGENT - WEATHER MESSAGE
National Weather Service Cheyenne WY
201 PM MDT Tue Apr 21 2026

WYZ118-221215-
/O.CON.KCYS.HW.A.0031.260422T2100Z-260424T0000Z/
Central Laramie County-
Including the cities of Cheyenne
201 PM MDT Tue Apr 21 2026

...HIGH WIND WATCH REMAINS IN EFFECT FROM WEDNESDAY AFTERNOON
THROUGH THURSDAY AFTERNOON...

* WHAT...West winds 25 to 35 mph with gusts up to 60 mph possible.

* WHERE...Central Laramie County.

* WHEN...From Wednesday afternoon through Thursday afternoon.

* IMPACTS...Mainly to transportation. Strong cross winds will be
  hazardous to light weight or high profile vehicles, including
  campers and tractor trailers.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A High Wind Watch means there is the potential for a hazardous high
wind event. Sustained wind speeds of at least 40 MPH or gusts of 58
MPH or stronger may occur. Continue to monitor the latest forecasts.

&&

$$